Extract data from web with google script

I’m trying to use the function below (source) to avoid using importxml in Google Sheets:

function importRegex(url, regex_string) {
  var html, content = '';
  var response = UrlFetchApp.fetch(url);
  if (response) {
    html = response.getContentText();
    if (html.length && regex_string.length) {
      var regex = new RegExp( regex_string, "i" );
      content = html.match(regex)[1];
  return content;  

I want to extract stock prices and day change from Yahoo Finance, for example from: https://finance.yahoo.com/quote/TSLA/, but I can’t get the regex_string right. I have tried several strings but none seens to work. Some one can help me please?

=importRegex("https://finance.yahoo.com/quote/TSLA/", "<span class=""Trsdu(0.3s) Fw(b) Fz(36px) Mb(-4px) D(ib)"" data-reactid=""32"">(.*)</span>")

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Author: Caseyblack999